Once again, where humans design new enclosures for apes, hubris swiftly follows: WAToday reports Pulang’s new home was “state of the art”, and designed to “mimic the Sumatran jungle”. Its shortcomings were sufficiently obvious to the fifteen-year-old primate that she immediately loosened a rope from a fixing bolt and swung her way to freedom.

As is now traditional, a largely pointless “security review” has been ordered by zoo top brass. Chief executive Susan Hunt noted that “orangutans are [one] of the world’s most intelligent, inquisitive and agile creatures … capable of picking locks and undoing bolts and screws.